|A window is an opening in an otherwise solid, opaque surface through which
light can pass. Windows come in all shapes and sizes and they all bring
light into our lives.
Very early windows were shielded with hide or cloth stretched over the
opening or wooden shutters. Later, three types of windows were invented that
allowed light but not weather to pass into a building: mullioned glass
windows, which joined multiple small pieces of glass with leading, paper
windows, and windows made of plates of thinly sliced marble.
windows were the windows of choice among European well-to-do, whereas paper
windows were economical and widely used in ancient China and Japan. In
England, glass became common in the windows of ordinary homes only in the
early 17th century. Modern-style floor-to-ceiling windows became possible
only after the industrial glass-making process was perfected.